583 lines
19 KiB
C
583 lines
19 KiB
C
/*
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* Copyright (c), Recep Aslantas.
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*
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* MIT License (MIT), http://opensource.org/licenses/MIT
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* Full license can be found in the LICENSE file
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*/
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/*
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Functions:
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CGLM_INLINE void glm_frustum(float left, float right,
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float bottom, float top,
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float nearZ, float farZ,
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mat4 dest)
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CGLM_INLINE void glm_ortho(float left, float right,
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float bottom, float top,
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float nearZ, float farZ,
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mat4 dest)
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CGLM_INLINE void glm_ortho_aabb(vec3 box[2], mat4 dest)
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CGLM_INLINE void glm_ortho_aabb_p(vec3 box[2], float padding, mat4 dest)
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CGLM_INLINE void glm_ortho_aabb_pz(vec3 box[2], float padding, mat4 dest)
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CGLM_INLINE void glm_ortho_default(float aspect, mat4 dest)
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CGLM_INLINE void glm_ortho_default_s(float aspect, float size, mat4 dest)
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CGLM_INLINE void glm_perspective(float fovy,
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float aspect,
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float nearZ,
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float farZ,
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mat4 dest)
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CGLM_INLINE void glm_perspective_default(float aspect, mat4 dest)
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CGLM_INLINE void glm_perspective_resize(float aspect, mat4 proj)
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CGLM_INLINE void glm_lookat(vec3 eye, vec3 center, vec3 up, mat4 dest)
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CGLM_INLINE void glm_look(vec3 eye, vec3 dir, vec3 up, mat4 dest)
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CGLM_INLINE void glm_look_anyup(vec3 eye, vec3 dir, mat4 dest)
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CGLM_INLINE void glm_persp_decomp(mat4 proj,
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float *nearZ, float *farZ,
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float *top, float *bottom,
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float *left, float *right)
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CGLM_INLINE void glm_persp_decompv(mat4 proj, float dest[6])
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CGLM_INLINE void glm_persp_decomp_x(mat4 proj, float *left, float *right)
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CGLM_INLINE void glm_persp_decomp_y(mat4 proj, float *top, float *bottom)
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CGLM_INLINE void glm_persp_decomp_z(mat4 proj, float *nearv, float *farv)
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CGLM_INLINE void glm_persp_decomp_far(mat4 proj, float *farZ)
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CGLM_INLINE void glm_persp_decomp_near(mat4 proj, float *nearZ)
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CGLM_INLINE float glm_persp_fovy(mat4 proj)
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CGLM_INLINE float glm_persp_aspect(mat4 proj)
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CGLM_INLINE void glm_persp_sizes(mat4 proj, float fovy, vec4 dest)
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*/
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#ifndef cglm_cam_h
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#define cglm_cam_h
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#include "common.h"
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#include "plane.h"
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#include "clipspace/persp.h"
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#ifndef CGLM_CLIPSPACE_INCLUDE_ALL
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# if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
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# include "clipspace/ortho_lh_zo.h"
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# include "clipspace/persp_lh_zo.h"
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# include "clipspace/view_lh_zo.h"
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# elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
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# include "clipspace/ortho_lh_no.h"
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# include "clipspace/persp_lh_no.h"
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# include "clipspace/view_lh_no.h"
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# elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
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# include "clipspace/ortho_rh_zo.h"
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# include "clipspace/persp_rh_zo.h"
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# include "clipspace/view_rh_zo.h"
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# elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
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# include "clipspace/ortho_rh_no.h"
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# include "clipspace/persp_rh_no.h"
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# include "clipspace/view_rh_no.h"
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# endif
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#else
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# include "clipspace/ortho_lh_zo.h"
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# include "clipspace/persp_lh_zo.h"
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# include "clipspace/ortho_lh_no.h"
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# include "clipspace/persp_lh_no.h"
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# include "clipspace/ortho_rh_zo.h"
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# include "clipspace/persp_rh_zo.h"
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# include "clipspace/ortho_rh_no.h"
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# include "clipspace/persp_rh_no.h"
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# include "clipspace/view_lh_zo.h"
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# include "clipspace/view_lh_no.h"
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# include "clipspace/view_rh_zo.h"
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# include "clipspace/view_rh_no.h"
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#endif
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/*!
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* @brief set up perspective peprojection matrix
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*
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* @param[in] left viewport.left
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* @param[in] right viewport.right
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* @param[in] bottom viewport.bottom
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* @param[in] top viewport.top
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* @param[in] nearZ near clipping plane
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* @param[in] farZ far clipping plane
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* @param[out] dest result matrix
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*/
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CGLM_INLINE
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void
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glm_frustum(float left, float right,
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float bottom, float top,
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float nearZ, float farZ,
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mat4 dest) {
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#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
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glm_frustum_lh_zo(left, right, bottom, top, nearZ, farZ, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
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glm_frustum_lh_no(left, right, bottom, top, nearZ, farZ, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
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glm_frustum_rh_zo(left, right, bottom, top, nearZ, farZ, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
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glm_frustum_rh_no(left, right, bottom, top, nearZ, farZ, dest);
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#endif
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}
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/*!
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* @brief set up orthographic projection matrix
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*
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* @param[in] left viewport.left
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* @param[in] right viewport.right
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* @param[in] bottom viewport.bottom
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* @param[in] top viewport.top
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* @param[in] nearZ near clipping plane
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* @param[in] farZ far clipping plane
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* @param[out] dest result matrix
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*/
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CGLM_INLINE
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void
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glm_ortho(float left, float right,
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float bottom, float top,
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float nearZ, float farZ,
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mat4 dest) {
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#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
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glm_ortho_lh_zo(left, right, bottom, top, nearZ, farZ, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
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glm_ortho_lh_no(left, right, bottom, top, nearZ, farZ, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
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glm_ortho_rh_zo(left, right, bottom, top, nearZ, farZ, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
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glm_ortho_rh_no(left, right, bottom, top, nearZ, farZ, dest);
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#endif
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}
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/*!
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* @brief set up orthographic projection matrix using bounding box
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*
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* bounding box (AABB) must be in view space
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*
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* @param[in] box AABB
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* @param[out] dest result matrix
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*/
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CGLM_INLINE
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void
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glm_ortho_aabb(vec3 box[2], mat4 dest) {
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#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
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glm_ortho_aabb_lh_zo(box, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
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glm_ortho_aabb_lh_no(box, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
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glm_ortho_aabb_rh_zo(box, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
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glm_ortho_aabb_rh_no(box, dest);
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#endif
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}
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/*!
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* @brief set up orthographic projection matrix using bounding box
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*
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* bounding box (AABB) must be in view space
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*
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* @param[in] box AABB
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* @param[in] padding padding
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* @param[out] dest result matrix
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*/
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CGLM_INLINE
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void
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glm_ortho_aabb_p(vec3 box[2], float padding, mat4 dest) {
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#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
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glm_ortho_aabb_p_lh_zo(box, padding, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
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glm_ortho_aabb_p_lh_no(box, padding, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
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glm_ortho_aabb_p_rh_zo(box, padding, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
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glm_ortho_aabb_p_rh_no(box, padding, dest);
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#endif
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}
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/*!
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* @brief set up orthographic projection matrix using bounding box
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*
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* bounding box (AABB) must be in view space
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*
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* @param[in] box AABB
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* @param[in] padding padding for near and far
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* @param[out] dest result matrix
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*/
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CGLM_INLINE
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void
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glm_ortho_aabb_pz(vec3 box[2], float padding, mat4 dest) {
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#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
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glm_ortho_aabb_pz_lh_zo(box, padding, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
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glm_ortho_aabb_pz_lh_no(box, padding, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
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glm_ortho_aabb_pz_rh_zo(box, padding, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
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glm_ortho_aabb_pz_rh_no(box, padding, dest);
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#endif
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}
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/*!
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* @brief set up unit orthographic projection matrix
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*
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* @param[in] aspect aspect ration ( width / height )
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* @param[out] dest result matrix
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*/
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CGLM_INLINE
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void
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glm_ortho_default(float aspect, mat4 dest) {
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#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
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glm_ortho_default_lh_zo(aspect, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
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glm_ortho_default_lh_no(aspect, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
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glm_ortho_default_rh_zo(aspect, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
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glm_ortho_default_rh_no(aspect, dest);
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#endif
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}
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/*!
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* @brief set up orthographic projection matrix with given CUBE size
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*
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* @param[in] aspect aspect ratio ( width / height )
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* @param[in] size cube size
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* @param[out] dest result matrix
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*/
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CGLM_INLINE
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void
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glm_ortho_default_s(float aspect, float size, mat4 dest) {
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#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
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glm_ortho_default_s_lh_zo(aspect, size, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
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glm_ortho_default_s_lh_no(aspect, size, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
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glm_ortho_default_s_rh_zo(aspect, size, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
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glm_ortho_default_s_rh_no(aspect, size, dest);
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#endif
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}
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/*!
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* @brief set up perspective projection matrix
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*
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* @param[in] fovy field of view angle
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* @param[in] aspect aspect ratio ( width / height )
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* @param[in] nearZ near clipping plane
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* @param[in] farZ far clipping planes
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* @param[out] dest result matrix
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*/
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CGLM_INLINE
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void
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glm_perspective(float fovy, float aspect, float nearZ, float farZ, mat4 dest) {
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#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
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glm_perspective_lh_zo(fovy, aspect, nearZ, farZ, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
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glm_perspective_lh_no(fovy, aspect, nearZ, farZ, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
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glm_perspective_rh_zo(fovy, aspect, nearZ, farZ, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
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glm_perspective_rh_no(fovy, aspect, nearZ, farZ, dest);
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#endif
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}
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/*!
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* @brief extend perspective projection matrix's far distance
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*
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* this function does not guarantee far >= near, be aware of that!
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*
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* @param[in, out] proj projection matrix to extend
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* @param[in] deltaFar distance from existing far (negative to shink)
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*/
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CGLM_INLINE
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void
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glm_persp_move_far(mat4 proj, float deltaFar) {
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#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
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glm_persp_move_far_lh_zo(proj, deltaFar);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
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glm_persp_move_far_lh_no(proj, deltaFar);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
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glm_persp_move_far_rh_zo(proj, deltaFar);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
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glm_persp_move_far_rh_no(proj, deltaFar);
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#endif
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}
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/*!
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* @brief set up perspective projection matrix with default near/far
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* and angle values
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*
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* @param[in] aspect aspect ratio ( width / height )
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* @param[out] dest result matrix
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*/
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CGLM_INLINE
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void
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glm_perspective_default(float aspect, mat4 dest) {
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#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
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glm_perspective_default_lh_zo(aspect, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
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glm_perspective_default_lh_no(aspect, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
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glm_perspective_default_rh_zo(aspect, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
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glm_perspective_default_rh_no(aspect, dest);
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#endif
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}
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/*!
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* @brief resize perspective matrix by aspect ratio ( width / height )
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* this makes very easy to resize proj matrix when window /viewport
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* reized
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*
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* @param[in] aspect aspect ratio ( width / height )
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* @param[in, out] proj perspective projection matrix
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*/
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CGLM_INLINE
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void
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glm_perspective_resize(float aspect, mat4 proj) {
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if (proj[0][0] == 0.0f)
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return;
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proj[0][0] = proj[1][1] / aspect;
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}
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/*!
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* @brief set up view matrix
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*
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* NOTE: The UP vector must not be parallel to the line of sight from
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* the eye point to the reference point
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*
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* @param[in] eye eye vector
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* @param[in] center center vector
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* @param[in] up up vector
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* @param[out] dest result matrix
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*/
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CGLM_INLINE
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void
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glm_lookat(vec3 eye, vec3 center, vec3 up, mat4 dest) {
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#if CGLM_CONFIG_CLIP_CONTROL & CGLM_CLIP_CONTROL_LH_BIT
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glm_lookat_lh(eye, center, up, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL & CGLM_CLIP_CONTROL_RH_BIT
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glm_lookat_rh(eye, center, up, dest);
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#endif
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}
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/*!
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* @brief set up view matrix
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*
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* convenient wrapper for lookat: if you only have direction not target self
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* then this might be useful. Because you need to get target from direction.
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*
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* NOTE: The UP vector must not be parallel to the line of sight from
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* the eye point to the reference point
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*
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* @param[in] eye eye vector
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* @param[in] dir direction vector
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* @param[in] up up vector
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* @param[out] dest result matrix
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*/
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CGLM_INLINE
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void
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glm_look(vec3 eye, vec3 dir, vec3 up, mat4 dest) {
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#if CGLM_CONFIG_CLIP_CONTROL & CGLM_CLIP_CONTROL_LH_BIT
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glm_look_lh(eye, dir, up, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL & CGLM_CLIP_CONTROL_RH_BIT
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glm_look_rh(eye, dir, up, dest);
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#endif
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}
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/*!
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* @brief set up view matrix
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*
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* convenient wrapper for look: if you only have direction and if you don't
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* care what UP vector is then this might be useful to create view matrix
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*
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* @param[in] eye eye vector
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* @param[in] dir direction vector
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* @param[out] dest result matrix
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*/
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CGLM_INLINE
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void
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glm_look_anyup(vec3 eye, vec3 dir, mat4 dest) {
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#if CGLM_CONFIG_CLIP_CONTROL & CGLM_CLIP_CONTROL_LH_BIT
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glm_look_anyup_lh(eye, dir, dest);
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#elif CGLM_CONFIG_CLIP_CONTROL & CGLM_CLIP_CONTROL_RH_BIT
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glm_look_anyup_rh(eye, dir, dest);
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#endif
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}
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/*!
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* @brief decomposes frustum values of perspective projection.
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*
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* @param[in] proj perspective projection matrix
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* @param[out] nearZ near
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* @param[out] farZ far
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* @param[out] top top
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* @param[out] bottom bottom
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* @param[out] left left
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* @param[out] right right
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*/
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CGLM_INLINE
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void
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glm_persp_decomp(mat4 proj,
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float * __restrict nearZ, float * __restrict farZ,
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float * __restrict top, float * __restrict bottom,
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float * __restrict left, float * __restrict right) {
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#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
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glm_persp_decomp_lh_zo(proj, nearZ, farZ, top, bottom, left, right);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
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glm_persp_decomp_lh_no(proj, nearZ, farZ, top, bottom, left, right);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
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glm_persp_decomp_rh_zo(proj, nearZ, farZ, top, bottom, left, right);
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#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
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glm_persp_decomp_rh_no(proj, nearZ, farZ, top, bottom, left, right);
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#endif
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}
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/*!
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* @brief decomposes frustum values of perspective projection.
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* this makes easy to get all values at once
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*
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* @param[in] proj perspective projection matrix
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* @param[out] dest array
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*/
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CGLM_INLINE
|
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void
|
|
glm_persp_decompv(mat4 proj, float dest[6]) {
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#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
|
|
glm_persp_decompv_lh_zo(proj, dest);
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|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
|
|
glm_persp_decompv_lh_no(proj, dest);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
|
|
glm_persp_decompv_rh_zo(proj, dest);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
|
|
glm_persp_decompv_rh_no(proj, dest);
|
|
#endif
|
|
}
|
|
|
|
/*!
|
|
* @brief decomposes left and right values of perspective projection.
|
|
* x stands for x axis (left / right axis)
|
|
*
|
|
* @param[in] proj perspective projection matrix
|
|
* @param[out] left left
|
|
* @param[out] right right
|
|
*/
|
|
CGLM_INLINE
|
|
void
|
|
glm_persp_decomp_x(mat4 proj,
|
|
float * __restrict left,
|
|
float * __restrict right) {
|
|
#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
|
|
glm_persp_decomp_x_lh_zo(proj, left, right);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
|
|
glm_persp_decomp_x_lh_no(proj, left, right);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
|
|
glm_persp_decomp_x_rh_zo(proj, left, right);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
|
|
glm_persp_decomp_x_rh_no(proj, left, right);
|
|
#endif
|
|
}
|
|
|
|
/*!
|
|
* @brief decomposes top and bottom values of perspective projection.
|
|
* y stands for y axis (top / botom axis)
|
|
*
|
|
* @param[in] proj perspective projection matrix
|
|
* @param[out] top top
|
|
* @param[out] bottom bottom
|
|
*/
|
|
CGLM_INLINE
|
|
void
|
|
glm_persp_decomp_y(mat4 proj,
|
|
float * __restrict top,
|
|
float * __restrict bottom) {
|
|
#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
|
|
glm_persp_decomp_y_lh_zo(proj, top, bottom);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
|
|
glm_persp_decomp_y_lh_no(proj, top, bottom);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
|
|
glm_persp_decomp_y_rh_zo(proj, top, bottom);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
|
|
glm_persp_decomp_y_rh_no(proj, top, bottom);
|
|
#endif
|
|
}
|
|
|
|
/*!
|
|
* @brief decomposes near and far values of perspective projection.
|
|
* z stands for z axis (near / far axis)
|
|
*
|
|
* @param[in] proj perspective projection matrix
|
|
* @param[out] nearZ near
|
|
* @param[out] farZ far
|
|
*/
|
|
CGLM_INLINE
|
|
void
|
|
glm_persp_decomp_z(mat4 proj, float * __restrict nearZ, float * __restrict farZ) {
|
|
#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
|
|
glm_persp_decomp_z_lh_zo(proj, nearZ, farZ);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
|
|
glm_persp_decomp_z_lh_no(proj, nearZ, farZ);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
|
|
glm_persp_decomp_z_rh_zo(proj, nearZ, farZ);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
|
|
glm_persp_decomp_z_rh_no(proj, nearZ, farZ);
|
|
#endif
|
|
}
|
|
|
|
/*!
|
|
* @brief decomposes far value of perspective projection.
|
|
*
|
|
* @param[in] proj perspective projection matrix
|
|
* @param[out] farZ far
|
|
*/
|
|
CGLM_INLINE
|
|
void
|
|
glm_persp_decomp_far(mat4 proj, float * __restrict farZ) {
|
|
#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
|
|
glm_persp_decomp_far_lh_zo(proj, farZ);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
|
|
glm_persp_decomp_far_lh_no(proj, farZ);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
|
|
glm_persp_decomp_far_rh_zo(proj, farZ);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
|
|
glm_persp_decomp_far_rh_no(proj, farZ);
|
|
#endif
|
|
}
|
|
|
|
/*!
|
|
* @brief decomposes near value of perspective projection.
|
|
*
|
|
* @param[in] proj perspective projection matrix
|
|
* @param[out] nearZ near
|
|
*/
|
|
CGLM_INLINE
|
|
void
|
|
glm_persp_decomp_near(mat4 proj, float * __restrict nearZ) {
|
|
#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
|
|
glm_persp_decomp_near_lh_zo(proj, nearZ);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
|
|
glm_persp_decomp_near_lh_no(proj, nearZ);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
|
|
glm_persp_decomp_near_rh_zo(proj, nearZ);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
|
|
glm_persp_decomp_near_rh_no(proj, nearZ);
|
|
#endif
|
|
}
|
|
|
|
/*!
|
|
* @brief returns sizes of near and far planes of perspective projection
|
|
*
|
|
* @param[in] proj perspective projection matrix
|
|
* @param[in] fovy fovy (see brief)
|
|
* @param[out] dest sizes order: [Wnear, Hnear, Wfar, Hfar]
|
|
*/
|
|
CGLM_INLINE
|
|
void
|
|
glm_persp_sizes(mat4 proj, float fovy, vec4 dest) {
|
|
#if CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_ZO
|
|
glm_persp_sizes_lh_zo(proj, fovy, dest);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_LH_NO
|
|
glm_persp_sizes_lh_no(proj, fovy, dest);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_ZO
|
|
glm_persp_sizes_rh_zo(proj, fovy, dest);
|
|
#elif CGLM_CONFIG_CLIP_CONTROL == CGLM_CLIP_CONTROL_RH_NO
|
|
glm_persp_sizes_rh_no(proj, fovy, dest);
|
|
#endif
|
|
}
|
|
|
|
#endif /* cglm_cam_h */
|